Dilator and the like



L. J. M. PLANTIER.

DILATOR AND THE LlKE.

FILED MAY 4. 1921.

- Jan. 30, 1923. 1,443,801.

Patented den. 39, i925.

entree raiser LUDOVIC qur ns Memos rnnn'rrnn, or annonmz, annncnn, FRANCE.

DILATOR AND THE LIKE.

Application filed May 4, 1921. Serial No.466,629.

dilators and the like, these being surgical;

instruments for expanding organic ducts. Instruments actually employed in surgery for the dilation of the natural ducts (as for example, the wind pipe, urinary duct, and so on) which have been affected by contraction or spasm are in the nature of probes,

olives, air bags, and so on; All these act di-' rectly upon the mucus, against-whichthey are immediately applied, and eXerc -upon it a pressure or friction which quiteharsli and damaging and which. moreover,o'l ten stretches or elongates the organ in an unfortunate manner. In some cases this triction causes an abrasion ot the usually fragile epithelium protector and sets up hemorrhage, or creates fissures or erosions which may preserve the spasm, or produces int'ection or causes wounds which leave scars behind.

In the case of some of them, where several olives are used in succession, the second being larger than the first and so on, the second olive may take a wrong course and. come to a stop blindly in a cul-de-sac, in. spite of the tact that the first olive, which can better be directed. on accmint ott itslesser dimensions, has taken the correct course.

Bougies or catheters on account of the uniformity of their diameters are the cause oi? needless pain throughout the course of their passage in the wind pipe and they prevent swallowing of the saliva. as well. occasionally rendering respiration di lt and setting up cyanosis. Locally metallic dilators imprison the mucus spaces between their sides an have in the a nipping effect. As regards pneumatic dilators, apart from their volume, these objectionable owing to the fact that they themselves suffer strangulation and constriction at the place of contraction of the natural duct where they are subjected to the greatest ansible' and even of the danger of these diflerent recognized means is responslble for bringing about the invention of the present improves ments. In order to enable the invention to be readily understood, reference is made to the accompanying drawing, attached to and forming part of this specification, in

Figure-l is a vertical section of a dilator constructed in accordance with these improvements.

Figure 2 is a plan of the instrument seen in Figure 1. i v

The instrument illustrated in the drawing comprises, firstly, an eXplorer-guide prm tector constituted by an end, part a formed of solid rubber and having an olive-shaped tip and a protecting caoutchouc tube c-iiX'ed to the upper end of the part 'a which tube encircles a central metallic guide rod- 7). The instrument comprises, secondly, a me tallic olive (I, which may be'one of a series o't graduated dimensions. These olives are perforated along their central axes in order to enable them to be slid on to the rod 7). For moving an olive a? along the rod a pusher device .6 is provided so that the olive (Z may be pushed along to the region of the contraction where it exercises its action in a gentle and unobjectionable manner as it traverses the sheath of caoutchouc, which protects the mucus.

The explorer-guide-protector comprises three parts. (a) The explorer, properly socalled, consisting oit-the part a which is formed as a small cone of solidrubber ter metallic rod which is sunlt into and fixed solidly in the axis of the cone of rubber. a. This rod is of circular cross section and is very smooth. for it to extend from the stomach-to the outside of the mouth and it should possess a slight flexibility. Theprotector 0 consists of a sheath of red caoutchouc which is expansible and very smooth. This sheath'is attached to the periphery of the upper part of the cone (L and encloses the metallic rod from which it is separated by a large empty space through which pass the successive dilators or olives. The caoutchouc sheath 0 is not quite so long as the guide rod 5 which Also, its length is suflicient.

Q. Ti ,e ieeoi ter inated by an olive 01? said sheath, e I Within the sheath fixed in. the center 0'? rhe upu part of said conical solid rubber eieine'nt an olive erfemted through its Wi th smooth intei'ieily exteriwiiy :i'ii expamsihie but TH so se'i't ii iriiddie for sliding over the guide ieu said liable to he puckered mdei A olive being adapted for sliding Within the descent ot the olive. sheath, an operating rod attached to the eiive and guide eyes fixed to said operating iiie pusher-diizitoi' (ramp 7 ind and engaging the gulde rod.

((1.) A metaiiie oiie .4 was iiiidiiezii body is suited -i .Aliinstiunient for dilating organieeeu tie-111311901 enabling; to siiille on r prising sine-0th protective tapering sheath, i'od i). (7)) A. pusher W1 ive tip at the smell end of said sheath, having its extremity screw; 'itudinei guide means within said sheath, into the eiii'e 1-7 and sdepte an Olive siidehie on said guide means Within isitte along the length of the we sheath and adapted for dilating 01. 6X- rnove it to and beyond the n? er, and :1. push rod detachtion. This rod may be metres end carries iin anethe and engegiii m the 5 c Se holding the rod 6 sub 01' the s cted by constriction 01 spasm, eoniheuth (a By 11 v the olive ii n sii 00th et-z l zinsihle sheath closed at it is pessihie to substitute 0. flier and se to us end by a soiid rounded tip, a i'i id lien substitute successively a mun m m? 0 i 'ci'm pi'essible olive siidebie within said different dimensions each oiii'e being sheath, operating menus "for sliding said ed on the pusiiei' in :i similar iiieimei'. OTTG along the interior of said sheath, and I claim: guide means centi'aiiy disposed Within said i. fan instrument for sheath, sa d epei'etin means and said guide duits eii'ected by censtiie i u'ieens having gi'iidiiji engagement one with prising a smooth protective IiiUilili: 0'? irrzeiuthe ether substantially as set ferth. vimuc :1 smeil conical seiid iuliheielemeisi Dz. LUBOVEC JULES MARUS PLANNER. 

